ashraestandard18911hour4slidesperpage

Upload: gunaseelan-bhaskaran

Post on 07-Apr-2018

216 views

Category:

Documents


0 download

TRANSCRIPT

  • 8/4/2019 ASHRAEStandard18911hour4slidesperpage

    1/17

    The (Proposed) ASHRAEThe (Proposed) ASHRAE

    Standard 189.1Standard 189.1

    HighHigh--Performance,Performance,Green BuildingsGreen Buildings

    Tom Lawrence, Ph.D. P.E., LEEDTom Lawrence, Ph.D. P.E., LEED--APAP

    [email protected]@engr.uga.edu

    44

    ASHRAE Standard 189.1ASHRAE Standard 189.1

    Overview of proposed ASHRAE StandardOverview of proposed ASHRAE Standard

    189.1 for189.1 forHighHigh--Performance, GreenPerformance, Green

    BuildingsBuildings

    -- What is it?What is it?

    -- Why have it?Why have it?

    -- StatusStatus

    -- HighlightsHighlights

    55

    ASHRAEASHRAEs More Active Role ins More Active Role in

    Sustainable DesignSustainable Design

    Sustainability PolicySustainability Policy What Standard 189.1 is:What Standard 189.1 is:

    -- a standarda standard

    -- applies to all buildings except lowapplies to all buildings except low--rise residentialrise residentialbuildings (same as ASHRAE Std 90.1)buildings (same as ASHRAE Std 90.1)

    -- intended for adoption into model building codesintended for adoption into model building codes

    What Standard 189.1 is not:What Standard 189.1 is not:

    -- notnot a design guidea design guide

    -- notnot a rating systema rating systemEven if not adopted by local authorities,this Standard is an indication of future trends

    Standard 189.1: IntentStandard 189.1: Intent

  • 8/4/2019 ASHRAEStandard18911hour4slidesperpage

    2/17

    Standard 189.1: Relation to OtherStandard 189.1: Relation to Other

    ASHRAE StandardsASHRAE Standards

    Adapt, withmodifications

    Adapt,with minor

    modifications

    Adapt

    62.1 (current version)90.1 (current version)

    90.1 (current version)

    55 (current version)

    88

    Why is this Needed?Why is this Needed?

    Localities are beginning to adoptLocalities are beginning to adoptgreengreen

    buildingbuildingas a requirementas a requirement

    -- LEED certification (to some level)LEED certification (to some level)

    -- Others are more vagueOthers are more vague

    Intended to fill a gap in evolving buildingIntended to fill a gap in evolving building

    codescodes

    ASHRAE partnership with USGBC, IESNA,ASHRAE partnership with USGBC, IESNA,

    and will be submitted for ANSI approvaland will be submitted for ANSI approval

    99

    Organization and What it CoversOrganization and What it Covers

    Similar to other ASHRAE standards and LEEDSimilar to other ASHRAE standards and LEED

    and Plans for Operation

    MandatoryMandatory

    PrescriptivePrescriptive

    PerformancePerformance

    1010

    The purpose of this standard is to provideThe purpose of this standard is to provide

    minimum requirements for theminimum requirements for the siting, design,siting, design,

    construction, and plans for operationconstruction, and plans for operationof highof high

    performance, green buildings to:performance, green buildings to:(a)(a) balancebalanceenvironmental responsibility,environmental responsibility,

    resource efficiency, occupant comfort and wellresource efficiency, occupant comfort and well

    being, and community sensitivity, andbeing, and community sensitivity, and

    (b)(b) support the goal of development thatsupport the goal of development that

    meets the needs of the present w ithoutmeets the needs of the present w ithout

    compromisingcompromisingthe ability of future generationsthe ability of future generationsto meet their own needs.to meet their own needs.

    Section 2Section 2 -- PurposePurpose

  • 8/4/2019 ASHRAEStandard18911hour4slidesperpage

    3/17

  • 8/4/2019 ASHRAEStandard18911hour4slidesperpage

    4/17

    1515

    ChallengesChallenges

    Using normative (code) languageUsing normative (code) language

    Determining the stringency for aDetermining the stringency for a

    minimumminimumstandardstandard

    Identifying standards or regulations to citeIdentifying standards or regulations to cite(could not reference guidelines)(could not reference guidelines)

    Prescribing universal strategiesPrescribing universal strategies(requirements for all, not a menu)(requirements for all, not a menu)

    Coordination with other initiativesCoordination with other initiatives Creating something that is enforceableCreating something that is enforceable

    1616

    Ind irect Benefits of Establishing BaselineIndirect Benefits of Establishing Baseline

    More certainty for manufacturersMore certainty for manufacturers

    -- Will develop and provide next generationWill develop and provide next generation

    products if a market is known to existproducts if a market is known to exist

    Benefits to existing buildingsBenefits to existing buildings

    -- Suppliers will stock better performingSuppliers will stock better performing

    products as they become availableproducts as they become available

    1717

    Potential Users of Std. 189.1Potent ial Users of Std. 189.1

    Organizations with green building ratingOrganizations with green building rating

    systems (LEED, Green Building Initiative)systems (LEED, Green Building Initiative)

    Developers:Developers:

    individual projectsindividual projects

    Corporations:Corporations: corporate ownedcorporate owned

    Universities:Universities: campus buildingscampus buildings

    States/provinces/municipalities:States/provinces/municipalities:

    -- their own buildingstheir own buildings

    -- basis for incentivesbasis for incentives

    -- private construction, through reference inprivate construction, through reference in

    local codeslocal codes

    1818

    x.1:x.1: ScopeScope

    x.2:x.2: ComplianceCompliance

    x.3:x.3: MandatoryMandatory(required for all projects)(required for all projects)

    x.4:x.4: PrescriptivePrescriptive optionoption

    (simple option, minimal choices,(simple option, minimal choices,

    very few calculations)very few calculations)

    x.5:x.5: PerformancePerformance optionoption

    (more sophisticated, flexibility, but(more sophisticated, flexibility, butmore effort)more effort)

    Standard 189.1 Basic StructureStandard 189 .1 Basic Structure

    For Each Section

  • 8/4/2019 ASHRAEStandard18911hour4slidesperpage

    5/17

    1919

    Highlights of Standard 189.1Highlights of Standard 189.1

    Chapter 5Chapter 5 -- Sites:Sites:

    Discourages unmitigated spraw lDiscourages unmitigated spraw l Prohibited development activityProhibited development activity

    -- Flood plains, wetlands, fish and wildlifeFlood plains, wetlands, fish and wildlifehabitathabitat

    Other areas that are addressed:Other areas that are addressed:-- Amount of impervious surface areaAmount of impervious surface area [max of[max of

    60% of total site to be impervious]60% of total site to be impervious]-- Urban heat islandUrban heat island [shaded or higher solar[shaded or higher solarreflective index materials]reflective index materials]

    -- LightLightpollutionpollutionlimitationslimitations2020

    Mandatory P rovisionsMandatory P rovisions

    Heat island effectHeat island effect-- Site hardscape:Site hardscape:

    to be shaded, be SRIto be shaded, be SRI29, or porous pavers29, or porous pavers

    -- Wall:Wall:to be shaded up toto be shaded up to20 feet above grade20 feet above grade

    -- Roofs:Roofs:to be SRI 78 (lowto be SRI 78 (low--slope)/29 (steepslope)/29 (steep--slope) or cool roofslope) or cool roof

    Sustainable SitesSustainable Sites

    Definition: SRI

    Standard black = 0; standard white = 1

    2222

    Confusion of Heat Island w ithConfusion of Heat Island w ith

    Building Heat GainsBuilding Heat Gains

    Two separate issues!Two separate issues!

    -- Heat IslandHeat Island

    -- Building heat gainBuilding heat gain

    AAcool roofcool roofis just one of the potential strategiesis just one of the potential strategies

    for reducing heat gain to a building structurefor reducing heat gain to a building structure

    The Heat Island effect is a Siteissue (Section 5); heat gainto a building (and how fast it enters the buildin g) isprimarily an Energyissue (Section 7)

  • 8/4/2019 ASHRAEStandard18911hour4slidesperpage

    6/17

    2323

    Mandatory P rovisionsMandatory P rovisions

    Reduction ofReduction ofl ight pollutionlight pollution

    -- Outdoor lightingOutdoor lighting

    trespass:trespass:

    limits onlimits on

    horizontal andhorizontal and

    vertical luxvertical lux

    Sustainable SitesSustainable Sites

    2424

    Prescriptive Path forPrescriptive Path for

    ComplianceCompliance Site DevelopmentSite Development

    -- All sites:All sites:Min. 40% of area to beMin. 40% of area to beeffective pervious surface (vegetation, greeneffective pervious surface (vegetation, greenroof, porous pavers)roof, porous pavers)

    -- Greenfield sites:Greenfield sites:Min. 20% of area native or adapted plantsMin. 20% of area native or adapted plants

    Sustainable SitesSustainable Sites

    2525

    Mandatory ProvisionsMandatory Provisions

    Site water useSite water use: bio: bio--diverse plantings,diverse plantings,

    hydrozoning, & smart irrigation controllershydrozoning, & smart irrigation controllers

    Chapter 6Chapter 6 Water Use EfficiencyWater Use Efficiency

    2626

    Mandatory ProvisionsMandatory Provisions

    Building water useBuilding water use::

    ((6.3.2.1)6.3.2.1) plumbing fixtures & fittings perplumbing fixtures & fittings per

    U.S. EPA WaterSense or ASME StandardsU.S. EPA WaterSense or ASME Standards

    ((6.3.2.2)6.3.2.2) appliances per U.S. EPAappliances per U.S. EPA

    EnergyStar, with water use factor for publicEnergyStar, with water use factor for public

    access appliancesaccess appliances

    Chapter 6Chapter 6 Water Use EfficiencyWater Use Efficiency

  • 8/4/2019 ASHRAEStandard18911hour4slidesperpage

    7/17

    2727

    Mandatory P rovisions (ContMandatory P rovisions (Cont d)d)

    HVAC Systems (HVAC Systems (6.3.2.3)6.3.2.3) ::

    -- Once through cooling prohibitedOnce through cooling prohibited

    -- Cooling tower makeup and blowdownCooling tower makeup and blowdown

    meters, efficient drift eliminatorsmeters, efficient drift eliminators

    -- Condensate collection from units > 19 kWCondensate collection from units > 19 kW

    (65,000 Btu/hr)(65,000 Btu/hr)

    Chapter 6Chapter 6 Water Use EfficiencyWater Use Efficiency

    2828

    Performance OptionPerformance Option

    Site water use reductionSite water use reduction ::

    proposed potable water for irrigationproposed potable water for irrigation< 35% of baseline evapotranspiration< 35% of baseline evapotranspiration

    Building useBuilding use::

    Proposed use < [mandatory+ prescriptive]Proposed use < [mandatory+ prescriptive]

    Chapter 6Chapter 6 Water Use EfficiencyWater Use Efficiency

    2929

    Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)

    EnergyEnergy -- General:General:

    Goal is 30% less than Standard 90.1Goal is 30% less than Standard 90.1--20072007

    INCLUDING PROCESS LOADSINCLUDING PROCESS LOADS

    Appendix G from Standard 90.1 isAppendix G from Standard 90.1 is

    incorporated as aincorporated as a Normative AppendixNormative Appendix

    Metering for verificationMetering for verification

    Peak load reductionPeak load reduction

    Other areas increase stringency beyondOther areas increase stringency beyondStandard 90.1Standard 90.1

    Green Buildings Overview,Green Buildings Overview,

    Standard 189Standard 189 -- 3030

    ASHRAE Energy GoalsASHRAE Energy Goals

    2010 2015 2020 2025 2030

    36000

    Year

    Energy(kBtu/yr)

    ASHRAE BOD Goal

    Standard 90.1Standard 90.1

    Standard 189Standard 189

    AEDGAEDG

    Energy Reduction Proposal409,000 kJ/m-yr

    Btu/ft-yr

  • 8/4/2019 ASHRAEStandard18911hour4slidesperpage

    8/17

    3131

    Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)

    Mandatory Requirements:Mandatory Requirements:

    -- OnOn--site renewable power (site renewable power (7.3.2)7.3.2)1% of service overcurrent rating1% of service overcurrent rating

    -- ExceptionsExceptions

    -- solar hot water heating with 100%solar hot water heating with 100%

    total usetotal use oror peak capacity = 2.5%peak capacity = 2.5%

    of service overcurrent ratingof service overcurrent rating

    -- By 10% improvement in energyBy 10% improvement in energyefficiency plus COefficiency plus CO2e2e reductionreduction

    80%80%

    2.0%2.0%

    RevisedRevised

    in ISCin ISC

    3232

    Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)

    EnergyEnergy Mandatory continued:Mandatory continued:

    Remote or automatic reading metersRemote or automatic reading meters

    ((7.3.3)7.3.3) criteria based on sizecriteria based on size

    -- Energy sources (Table 7.3.3Energy sources (Table 7.3.3--1)1)

    -- Key systems (Table 7.3.3Key systems (Table 7.3.3--2)2)

    Meters communicate to central recordingMeters communicate to central recording

    systemsystem

    Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)

    3333

    Metering Thresholds:Metering Thresholds: May beMay beRevisedRevised

    in ISCin ISC

    3434

    Prescriptive Option (General)Prescriptive Option (General)

    Target is to comply withTarget is to comply withStandard 90.1Standard 90.1--20072007

    plusplus 30% savings30% savings

    Standard 189.1 buildsStandard 189.1 buildsfrom 90.1from 90.1--20072007

    Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)

  • 8/4/2019 ASHRAEStandard18911hour4slidesperpage

    9/17

    3535

    Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)

    Prescriptive Option (Continued)Prescriptive Option (Continued)

    Prescriptive Option:Prescriptive Option:

    -- Lower lighting power density (90%), expandLower lighting power density (90%), expandoccupancy sensor controloccupancy sensor control

    -- Increased requirement for economizers andIncreased requirement for economizers andvariable speed controlsvariable speed controls

    -- SHGC , East & West window area combinationSHGC , East & West window area combinationlimits for climate zones 1limits for climate zones 1--4 (west only in 54 (west only in 5--6)6)

    3636

    Prescriptive Option (Building Envelope)Prescriptive Option (Building Envelope)

    Section 7.4.2 generally has more stringentSection 7.4.2 generally has more stringent

    requirements for building enveloperequirements for building envelope Replaces Table 5.5Replaces Table 5.5--1 thru 8 on building1 thru 8 on building

    envelope in 90.1, for example:envelope in 90.1, for example:

    Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)((7.4.2 a )7.4.2 a )

    May beMay be

    RevisedRevised

    in ISCin ISC

    3737

    Prescriptive Option (Building Envelope)Prescriptive Option (Building Envelope)

    Example comparisons:Example comparisons:

    More stringent SHGCMore stringent SHGC

    Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)

    Example:Example:

    Climate zone 3Climate zone 3 Std 90.1 Std 189.1Std 90.1 Std 189.1

    Insulation above deck RInsulation above deck R--1515 RR--2525

    Example for 10Example for 10 --40% window area:40% window area:

    Climate zone 5Climate zone 5

    Std. 90.1: 0.39 (0.49 north)Std. 90.1: 0.39 (0.49 north)Std. 189 .1: 0.35 all orientat ionsStd. 189 .1: 0.35 all orientat ions

    ((7.4.2 a )7.4.2 a )

    3838

    Prescriptive Option (Building Envelope)Prescriptive Option (Building Envelope)

    Vertical fenestrationVertical fenestration 0.5

    ((7.4.2 e)7.4.2 e)

    -- Permanent projections: west, east & southPermanent projections: west, east & south

    -- Climate zones 1Climate zones 1--55

    Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)

  • 8/4/2019 ASHRAEStandard18911hour4slidesperpage

    10/17

    3939

    Prescriptive Option (Mechanical)Prescripti ve Option (Mechanical)

    Higher equipmentHigher equipment

    efficienciesefficiencies

    More pipe/duct insulationMore pipe/duct insulation

    Fan power allowance 10% lessFan power allowance 10% less

    Unoccupied hotel/motel rooms to haveUnoccupied hotel/motel rooms to have

    autoauto--shutoffshutoff

    Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)

    4040

    Prescriptive Option (Lighting)Prescriptive Option (Lighting)

    Interior lighting power to be 10% lessInterior lighting power to be 10% less

    than ASHRAE Standard 90.1than ASHRAE Standard 90.1

    Occupancy sensorOccupancy sensor

    controlscontrols

    AutoAuto--controlscontrols

    for lighting infor lighting in

    daylight zonesdaylight zones

    Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)

    7.4.3 HVAC

    90.1 (current version)

    Adapt, withmodifications

    General Concept:Base on Standard 90.1, butmodify to gain improvedenergy performance overcode minimum standards

    90.1 (current version)

    4242

    7.4.3 HVAC7.4.3 HVAC

    Brief mention of modifications to Std. 90.1Brief mention of modifications to Std. 90.1

    -- 7.4.3 (a)7.4.3 (a) Expanded air economizerExpanded air economizer

    requirementrequirement

    -- 7.4.3 (b)7.4.3 (b) Minimum equipment efficiencyMinimum equipment efficiency

    -- 7.4.3 (c)7.4.3 (c) Motorized dampers exceptionMotorized dampers exception

    -- 7.4.3 (d)7.4.3 (d) Lowers DCV occupancy thresholdLowers DCV occupancy threshold

    -- 7.4.3 (e)7.4.3 (e) Duct sealing level A everywhereDuct sealing level A everywhere

    -- 7.4.3 (f)7.4.3 (f) Expanded economizer requirementExpanded economizer requirement

    -- 7.4.3 (g)7.4.3 (g) Zone reheatZone reheat-- 7.4.3 (h)7.4.3 (h) Fan power limitation 10% lowerFan power limitation 10% lower

    -- 7.4.3 (i)7.4.3 (i)Added partAdded part--load fan power limitsload fan power limits

  • 8/4/2019 ASHRAEStandard18911hour4slidesperpage

    11/17

    4343

    7.4.3 HVAC7.4.3 HVAC

    Brief mention of modifications to Std. 90.1Brief mention of modifications to Std. 90.1

    (Continued)(Continued)

    -- 7.4.3 (j)7.4.3 (j) Lowered pump power thresholdLowered pump power threshold

    -- 7.4.3 (k)7.4.3 (k) Expand energy recovery reqExpand energy recovery reqtt

    -- 7.4.3 (l)7.4.3 (l) Kitchen hoods add variable speedKitchen hoods add variable speed

    -- 7.4.3 (m and n)7.4.3 (m and n) Minimum duct and pipeMinimum duct and pipe

    insulation increased (Tables Cinsulation increased (Tables C--16, 17 and 18)16, 17 and 18)

    -- 7.4.3 (o)7.4.3 (o)Added pipe sizing/flow limitationAdded pipe sizing/flow limitation

    -- 7.4.3 (p)7.4.3 (p) Unoccupied hotel/motel guestUnoccupied hotel/motel guest

    roomsrooms

    4444

    Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)

    Performance Based Option:Performance Based Option:

    Demonstrated equivalent performance inDemonstrated equivalent performance inbothboth energyenergyandand COCO22 equivalentequivalent

    compared to if using the Prescriptive pathcompared to if using the Prescriptive path

    ProposedProposed Mandatory +Mandatory +Prescriptive PathPrescriptive Path

    Using Appendix DUsing Appendix DPerformance OptionPerformance Optionfor Energy Efficiencyfor Energy Efficiency

    4545 4646

    Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)

    Performance Based Option:Performance Based Option:

    COCO22 equivalentequivalent compared to buildingcompared to building

    designed to the Prescriptive pathdesigned to the Prescriptive path

    NationalNational

    (U.S.)(U.S.)

    basedbased

    numbersnumbers

  • 8/4/2019 ASHRAEStandard18911hour4slidesperpage

    12/17

    4747

    Indoor Environmental Quality (Indoor Environmental Quality ( 8)8)

    Mandatory Key Items toMandatory Key Items to

    ASHRAE members:ASHRAE members:-- Outdoor airflowOutdoor airflow

    -- Tobacco smoke controlTobacco smoke control

    -- Outdoor air monitoringOutdoor air monitoring

    Refers to and modifies

    4848

    Indoor Environmental QualityIndoor Environmental Quality

    8.3.1 M inimum IAQ8.3.1 M inimum IAQ

    1.3 times Standard 62 .11.3 times Standard 62 .1--2004 outdoor2004 outdoorairflow for offices and classroomsairflow for offices and classrooms(climate zone and other exceptions)(climate zone and other exceptions)-- Climate zones 1A and 2AClimate zones 1A and 2A

    -- Offices zones 6,7,8 w ithout heat recoveryOffices zones 6,7,8 w ithout heat recovery

    -- NonNon--attainment air quality areasattainment air quality areas

    -- Design according to IAQ procedureDesign according to IAQ procedure

    NonNon--attainment PMattainment PM 2.52.5 MERV 13 filtersMERV 13 filters

    4949

    Example, and discussion on additionaloutdoor airflow requirement

    5050

    Indoor Environmental QualityIndoor Environmental Quality

    8.3.28.3.2

    Environmental Tobacco SmokeEnvironmental Tobacco Smoke

    ControlControl-- No smok ing inside, w ith signageNo smok ing inside, w ith signage

    -- No smoking w ithin 25 feet of entrance,No smoking w ithin 25 feet of entrance,

    outdoor air intakes or operable windowsoutdoor air intakes or operable windows

  • 8/4/2019 ASHRAEStandard18911hour4slidesperpage

    13/17

    5151

    Indoor Environmental QualityIndoor Environmental Quality

    Indoor Environmental Quality:Indoor Environmental Quality:

    Mandatory:Mandatory: 8.3.3 Outdoor Air Monitoring8.3.3 Outdoor Air Mon itoring

    -- COCO22 monitoring for systems servingmonitoring for systems serving

    densely occupied spaces (lowerdensely occupied spaces (lower

    threshold forthreshold for densely occupieddensely occupied

    than Std. 90.1than Std. 90.1--2007)2007)

    -- NonNon--densely occupied spaces monitor outdoordensely occupied spaces monitor outdoorairflow toairflow to 15% of15% ofdesign minimumdesign minimum

    outdoor airflow rateoutdoor airflow rate

    BeingBeing

    RevisedRevised

    in ISCin ISC5252

    Indoor Environmental QualityIndoor Environmental Quality

    Other Mandatory:Other Mandatory:

    Thermal ComfortThermal Comfort-- Comply withComply with

    ASHRAE Std 55ASHRAE Std 55

    Mat systems atMat systems at

    building entrancesbuilding entrances

    Acoustical designAcoustical design

    for envelope (soundfor envelope (soundtransmission ratingtransmission rating

    criteria)criteria)

    5353

    Other Mandatory:Other Mandatory:

    Minimum MERV 8Minimum MERV 8

    filtration upstreamfiltration upstreamof cooling coilsof cooling coils

    (revises 62.1)(revises 62.1)

    Daylighting byDaylighting by

    toplighting fortoplighting for

    large open spaceslarge open spaces

    Indoor Environmental QualityIndoor Environmental Quality

    5454

    Indoor Environmental Quality (Ch 8)Indoor Environmental Quality (Ch 8)

    Mandatory:Mandatory:

    Thermal ComfortThermal Comfort

    -- Comply withComply withASHRAE Std 55ASHRAE Std 55

    Mat systems atMat systems at

    building entrancesbuilding entrances

  • 8/4/2019 ASHRAEStandard18911hour4slidesperpage

    14/17

    5555

    Prescriptive Option (Prescriptive Option (8.4)8.4)::

    Side daylightingSide daylighting-- Offices and classroomsOffices and classrooms

    -- Minimum effective aperture of windowsMinimum effective aperture of windows

    -- Minimum visible reflectance of interiorMinimum visible reflectance of interior

    surfacessurfaces

    -- Exceptions forExceptions fordark roomsdark rooms,,

    facades closely adjacent tofacades closely adjacent toother buildingsother buildings

    Indoor Environmental QualityIndoor Environmental Quality

    5656

    Prescriptive Option (ContPrescriptive Option (Contdd))::

    Office space shading, with projections orOffice space shading, with projections orother techniquesother techniques

    Low emitting materialsLow emitting materials

    -- Adhesives and sealantsAdhesives and sealants

    -- Paints and coatingsPaints and coatings

    -- Floor covering materialsFloor covering materials

    -- Composite wood and agrifiber productsComposite wood and agrifiber products

    Indoor Environmental QualityIndoor Environmental Quality

    5757

    Performance Option (Performance Option (8.5)8.5)::

    Daylighting simulationDaylighting simulation

    -- All regularly occupied spacesAll regularly occupied spaces-- Minimum illuminance target:Minimum illuminance target:

    300 lux (30 fc) on work surfaces,300 lux (30 fc) on work surfaces,4.5 m (15 ft) from facade, noon equinox4.5 m (15 ft) from facade, noon equinox

    -- Direct sunlight on workplane < 20% ofDirect sunlight on workplane < 20% ofoccupied hours on equinox dayoccupied hours on equinox day

    Modeling to show compliance withModeling to show compliance withCalifornia CA/DHS/EHLB/RCalifornia CA/DHS/EHLB/R--7174 (low7174 (lowemitting materials)emitting materials)

    Indoor Environmental QualityIndoor Environmental Quality

    May beMay be

    RevisedRevised

    in ISCin ISC

    5858

    BuildingBuilding s Impact on Atmosphere,s Impact on Atmosphere,

    Materials and Resources (Materials and Resources ( 9)9)

    Mandatory Items Key to ASHRAE:Mandatory Items Key to ASHRAE:

    CFC, other refrigerant restrictionsCFC, other refrigerant restrictions

    -- No CFCsNo CFCs-- Global warm ing and ozone depletionGlobal warm ing and ozone depletion

    potentia l balancepotentia l balance

    LCGWP = Life cycle global warmingLCGWP = Life cycle global warming

    LCODP = Life cycle ozone depletionLCODP = Life cycle ozone depletion

    Units: kg CFC11/ kW-yrlb CFC11/ ton-yr

  • 8/4/2019 ASHRAEStandard18911hour4slidesperpage

    15/17

    5959

    BuildingBuilding s Impact on Atmosphere,s Impact on Atmosphere,

    Materials and Resources (Materials and Resources ( 9)9)

    Refrigerant restrictions (Continued):Refrigerant restrictions (Continued):

    GWPGWPrr = global warm ing potential= global warming potential

    0 to 12,000 kg CO0 to 12,000 kg CO22/ kg refrigerant/ kg refrigerant

    ODPODPrr = ozone depletion potential= ozone depletion potential

    0 to 0.2 kg CO0 to 0 .2 kg CO22/ kg refrigerant/ kg refrigerantLr= Leak rateMr= End of life refrigerant lossRc= Charge

    6060

    BuildingBuilding s Impact on Atmosphere,s Impact on Atmosphere,

    Materials and Resources (Materials and Resources ( 9)9)

    Refrigerant restrictions (Continued):Refrigerant restrictions (Continued):

    Exception:Exception:

    Small HVAC units, coolersSmall HVAC units, coolers

    w ith < 0 .5 lb refrigerant chargew ith < 0.5 lb refrigerant charge

    Life Cycle Assessment (Performance)Life Cycle Assessment (Performance)

    -- Must include operating energy consumptionMust include operating energy consumption

    -- LCA to includeLCA to include allall of these impact categories:of these impact categories:

    land use, resource use, climate change,land use, resource use, climate change,

    ozone layer depletion, human healthozone layer depletion, human health

    effects, ecotoxicity, smog, acidification,effects, ecotoxicity, smog, acidification,

    eutrophicationeutrophication

    -- show 5% gain in two categories for theshow 5% gain in two categories for thebuildingbuilding

    BuildingBuilding s Impact on Atmosphere,s Impact on Atmosphere,

    Materials and Resources (Materials and Resources ( 9)9)

    6262

    1010 -- Construction and Operation PlansConstruction and Operation P lans

    Mandatory:Mandatory:

    Full commissioning for projectsFull commissioning for projects

    > 5,000 ft> 5,000 ft

    -- HVAC, building envelope, lighting, irrigation,HVAC, building envelope, lighting, irrigation,

    plumbing, domestic water, renewable energyplumbing, domestic water, renewable energy

    Addition of monitoring equipment forAddition of monitoring equipment for

    measurement and verification, M&V plansmeasurement and verification, M&V plans

    -- water, energy and IAQwater, energy and IAQ

    -- M&V plans in placeM&V plans in place-- certification of lamp and ballast recyclingcertification of lamp and ballast recycling

  • 8/4/2019 ASHRAEStandard18911hour4slidesperpage

    16/17

    6363

    1010 -- Construction and Operation P lansConstruction and Operation Plans

    10.3.3.3 Energy Efficiency10.3.3.3 Energy Efficiency

    Two compliance pathsTwo compliance paths

    -- Comparison to CBECSComparison to CBECSbenchmark 12benchmark 12--1818

    months aftermonths after

    occupancyoccupancy

    -- Energy simulationEnergy simulation

    Done every 3 yearsDone every 3 years

    6464

    1010 -- Construction and Operation PlansConstruction and Operation P lans

    10.3.3.4 Indoor Environmental Quality10.3.3.4 Indoor Environmental Quality

    If CO2 monitoring, determine maximumIf CO2 monitoring, determine maximum

    allowableallowable action levelaction levelper Standard 62.1 forper Standard 62.1 forthat zone typethat zone type

    For outdoor air flow, monitor and react ifFor outdoor air flow, monitor and react if

    flow

  • 8/4/2019 ASHRAEStandard18911hour4slidesperpage

    17/17

    FURTHER INFORMATIONFURTHER INFORMATION

    Information on ASHRAE standards:Information on ASHRAE standards:

    www.ashrae.orgwww.ashrae.org then followthen followStandardsStandards, includes listserv for, includes listserv for

    Standard 189.1Standard 189.1

    Information on USGBC programs:Information on USGBC programs:

    www.usgbc.orgwww.usgbc.org

    Information on IESNA programs:Information on IESNA programs:www.iesna.orgwww.iesna.org

    6868

    Thank you!Thank you!

    Comments, questions, concerns, adviceComments, questions, concerns, advice

    Dr. Tom Lawrence, P.E., LEEDDr. Tom Lawrence, P.E., LEED--APAP

    [email protected]@engr.uga.edu